## How to Regrout Behind a Kitchen Sink: A Step-by-Step Guide
Regrouting the area behind a kitchen sink is a relatively simple task that can be completed in a few hours. However, it is important to follow the steps carefully to ensure a durable and watertight repair.
### Materials You Will Need
* **Grout remover**
* **Grout saw**
* **New grout**
* **Grout float**
* **Sponge**
* **Bucket**
* **Caulk gun**
* **Silicone caulk**
### Step-by-Step Instructions
**1. Remove the old grout.**
Using a grout remover, apply the product to the old grout and allow it to sit for the amount of time specified on the packaging. Once the grout has softened, use a grout saw to carefully remove it. Be sure to remove all of the old grout, as any remaining residue will prevent the new grout from adhering properly.
**2. Clean the area.**
Once the old grout has been removed, use a sponge and bucket of clean water to thoroughly clean the area. Be sure to remove any dust or debris that may have accumulated during the removal process. Allow the area to dry completely before proceeding to the next step.
**3. Apply new grout.**
Mix the new grout according to the manufacturer’s instructions. Using a grout float, apply the grout to the area behind the sink. Be sure to press the grout firmly into the joints between the tiles.
**4. Remove excess grout.**
Once the grout has been applied, use a damp sponge to remove any excess grout from the surface of the tiles. Be sure to rinse the sponge frequently to prevent the grout from drying on the surface.
**5. Allow the grout to dry.**
Allow the grout to dry for the amount of time specified on the packaging. Once the grout has dried, use a damp sponge to clean the surface of the tiles and remove any remaining grout residue.
**6. Apply silicone caulk.**
Apply a bead of silicone caulk around the edges of the sink where it meets the countertop. Be sure to smooth the caulk with your finger or a caulk tool to create a watertight seal.
**7. Allow the caulk to dry.**
Allow the silicone caulk to dry for the amount of time specified on the packaging. Once the caulk has dried, your regrouting project is complete.
### Tips
* If you are not comfortable using a grout saw, you can use a utility knife to score the old grout. This will make it easier to remove.
* Be sure to wear gloves and a mask when working with grout remover, as the product can be harmful to your skin and lungs.
* If you are regrouting a large area, it is helpful to use a grout bag. This will help you to apply the grout more evenly and quickly.
* Allow the grout to dry completely before using the sink. This will help to prevent the grout from cracking or crumbling.
### Troubleshooting
* If the new grout is not adhering properly, it may be because the surface was not cleaned properly before grouting. Be sure to remove all dust and debris before applying the grout.
* If the grout is cracking or crumbling, it may be because it was not mixed properly or it was applied too thinly. Be sure to mix the grout according to the manufacturer’s instructions and apply it to the joints between the tiles firmly.
* If the silicone caulk is not sealing properly, it may be because it was not applied properly or it was not allowed to dry completely. Be sure to apply the caulk around the edges of the sink where it meets the countertop and smooth it with your finger or a caulk tool. Allow the caulk to dry completely before using the sink.